diff --git a/game_map.py b/game_map.py
index ad742ac..5587217 100644
--- a/game_map.py
+++ b/game_map.py
@@ -1,18 +1,17 @@
-import numpy as np # type: ignore
+import numpy as np  # type: ignore
 from tcod.console import Console
 
 import tile_types
 
+
 class GameMap:
     def __init__(self, width: int, height: int):
-        self.width, self.height = width, height;
-        self.tiles = np.full((width, height), fill_value=tile_types.floor, order="F")
-
-        self.tiles[30:33, 22] = tile_types.wall
+        self.width, self.height = width, height
+        self.tiles = np.full((width, height), fill_value=tile_types.wall, order="F")
 
     def in_bounds(self, x: int, y: int) -> bool:
-        """Return True if x and y are inside of the bounds of the map."""
+        """Return True if x and y are inside the bounds of the map."""
         return 0 <= x < self.width and 0 <= y < self.height
 
     def render(self, console: Console):
-        console.tiles_rgb[0: self.width, 0: self.height] = self.tiles["dark"]
\ No newline at end of file
+        console.tiles_rgb[0: self.width, 0: self.height] = self.tiles["dark"]
diff --git a/main.py b/main.py
index 2d298d0..c3c3d0c 100755
--- a/main.py
+++ b/main.py
@@ -3,8 +3,8 @@ import tcod
 
 from engine import Engine
 from entity import Entity
-from game_map import GameMap
 from input_handlers import EventHandler
+from procgen import generate_dungeon
 
 
 def main() -> None:
@@ -23,20 +23,20 @@ def main() -> None:
 
     event_handler = EventHandler()
 
-    player = Entity(int(screen_width / 2), int(screen_height/ 2), "@", (255, 255, 255))
+    player = Entity(int(screen_width / 2), int(screen_height / 2), "@", (255, 255, 255))
     npc = Entity(int(screen_width / 2 - 5), int(screen_height / 2), "@", (255, 255, 0))
     entities = {npc, player}
 
-    game_map = GameMap(map_width, map_height)
+    game_map = generate_dungeon(map_width, map_height)
 
     engine = Engine(entities, event_handler, game_map, player)
 
     with tcod.context.new_terminal(
-        screen_width,
-        screen_height,
-        tileset=tileset,
-        title="Yet Another Roguelike Tutorial",
-        vsync=True,
+            screen_width,
+            screen_height,
+            tileset=tileset,
+            title="Yet Another Roguelike Tutorial",
+            vsync=True,
     ) as context:
         root_console = tcod.Console(screen_width, screen_height, order="F")
         while True:
diff --git a/procgen.py b/procgen.py
new file mode 100644
index 0000000..6e1d3d8
--- /dev/null
+++ b/procgen.py
@@ -0,0 +1,36 @@
+from typing import Tuple
+
+from game_map import GameMap
+import tile_types
+
+
+class RectangularRoom:
+    def __init__(self, x: int, y: int, width: int, height: int):
+        self.x1 = x
+        self.y1 = y
+        self.x2 = x + width
+        self.y2 = y + height
+
+    @property
+    def center(self) -> Tuple[int, int]:
+        center_x = int((self.x1 + self.x2) / 2)
+        center_y = int((self.y1 + self.y1) / 2)
+
+        return center_x, center_y
+
+    @property
+    def inner(self) -> Tuple[slice, slice]:
+        """Return the inner area of this room as a 2D array index."""
+        return slice(self.x1 + 1, self.x2), slice(self.y1 + 1, self.y2)
+
+
+def generate_dungeon(map_width, map_height) -> GameMap:
+    dungeon = GameMap(map_width, map_height)
+
+    room_1 = RectangularRoom(x=20, y=15, width=10, height=15)
+    room_2 = RectangularRoom(x=35, y=15, width=10, height=15)
+
+    dungeon.tiles[room_1.inner] = tile_types.floor
+    dungeon.tiles[room_2.inner] = tile_types.floor
+
+    return dungeon
diff --git a/requirements.txt b/requirements.txt
index dd23368..04ce4bf 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1,2 @@
-tcod>=11.13
+tcod>=11.14
 numpy>=1.18
\ No newline at end of file
diff --git a/tile_types.py b/tile_types.py
index c44d1b9..37bf9ec 100644
--- a/tile_types.py
+++ b/tile_types.py
@@ -15,16 +15,17 @@ graphic_dt = np.dtype(
 tile_dt = np.dtype(
     [
         ("walkable", np.bool),  # True if this tile can be walked over.
-        ("transparent", np.bool), # True if this tile doesn't block FOV.
-        ("dark", graphic_dt), # Graphics for when this tile is not in FOV.
+        ("transparent", np.bool),  # True if this tile doesn't block FOV.
+        ("dark", graphic_dt),  # Graphics for when this tile is not in FOV.
     ]
 )
 
+
 def new_tile(
-    *, # Enforce the use of keywords, so that parameter order doesn't matter
-    walkable: int,
-    transparent: int,
-    dark: Tuple[int, Tuple[int, int, int], Tuple[int, int, int]]
+        *,  # Enforce the use of keywords, so that parameter order doesn't matter
+        walkable: int,
+        transparent: int,
+        dark: Tuple[int, Tuple[int, int, int], Tuple[int, int, int]]
 ) -> np.ndarray:
     """Helper function for defining individual tile types"""
     return np.array((walkable, transparent, dark), dtype=tile_dt)
@@ -40,4 +41,4 @@ wall = new_tile(
     walkable=False,
     transparent=False,
     dark=(ord(" "), (255, 255, 255), (0, 0, 100))
-)
\ No newline at end of file
+)